Pro Heat D-58 LED Display Temperature Controller

[cbrownfish]

Has anyone had the opportunity to use this product? http://www.aquariumpros.com/p-PHD58.html

I bought 2 of these temp controllers and 2 500W titanium tubes. So far, I have one of them in operation. The controller function works great but there may be an issue with the tempature reading. I had my arm in my older tank and then reached into the new tank to adjust something. I was surprised that there appeared to be a quite a difference in temps (just based on the temp against my skin).

The Pro Heat controller showed 79.6 and the other tank showed 80.7 on the Coralife Digital. When I put the Coralife and Pro Heat probes side-by-side, there was nearly a 3 degree difference! One degree wouldn't freak me out but 3??!! I also tried another Coralife and it was within .1 of the other Coralife. Next, I dropped in a glass floating thermometer and that stupid thing split the difference. I have always thought highly of the Coralife digital thermometers.

Is this potentially the same type of scenario that I experienced with my PinPoint pH Monitor? I am using a higher quality product, that is producing a more accurate reading now? Or is this potentially a bad product? I have always thought highly of the Coralife digital's. I suppose I could hook up the other controller and see if it agrees with it brother.

I will report back on that.........

[cbrownfish]

Nope. The other controller is dead on with the twin.

[Kip]

calibrate it with an old fashioned glass thermometer and you will be set

FWIW... the controllers that come on the Won Pro titanium heaters.... i cut them off and just use the heating elements on Ranco TCs now

[cbrownfish]

Funny that we go back to the old tried and true. The titanium tubes are not wired directly to the Pro Heat, they are standard 110 plugs. later, I will probably upgrade to Ranco.